题目

As the busiest woman in Norton, she made _____ her duty to look after all the other people’s affairs in that town.A. this B. it C. that D. one 答案：【答案】B【解析】考查固定用法。句意：作为诺顿最忙碌的女人，她有责任处理镇上所有其他人的事务。此处为动词+形式宾语+宾语补足语+不定式结构，四项中只有it能作形式宾语，故B项正确。已知集合A{1,2,3},且A中至少含有一个奇数,则这样的集合A有（    ） A.6个                  B.5个                C.4个               D.3个